- NWP257B - Maintain and repair wastewater collection systems
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners
NWP257B Mapping and Delivery Guide
Maintain and repair wastewater collection systems
Version 1.0
Issue Date: April 2024
| Qualification | - |
Unit of Competency | NWP257B - Maintain and repair wastewater collection systems |
|---|---|---|---|
| Description | This unit of competency describes the outcomes required to investigate reported problems in wastewater collection systems and to conduct appropriate maintenance and repair work on wastewater collection assets. | ||
| Employability Skills | This unit of competency contains employability skills. | ||
| Learning Outcomes and Application | This unit supports the attainment of skills and knowledge required for field staff with specific responsibility for ensuring that repairs and maintenance of wastewater collection systems are conducted in a safe and timely manner. | ||
| Duration and Setting | X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting. |
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| Prerequisites/co-requisites | Not applicable. | ||
| Competency Field | Collection and distribution | ||
| Development and validation strategy and guide for assessors and learners | Student Learning Resources | Handouts Activities |
Slides PPT |
Assessment 1 | Assessment 2 | Assessment 3 | Assessment 4 | |
|---|---|---|---|---|---|---|---|---|
| Elements of Competency | Performance Criteria | |||||||
| Element: Investigate reported system problems. |
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| Element: Plan and prepare for maintenance and repair. |
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| Element: Maintain and repair assets, pipes and fittings. |
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| Element: Finalise work. |
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Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package. | |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | The candidate should demonstrate the ability to maintain and repair wastewater collection assets by: investigating reported faults negotiating with customers applying organisational procedures to selection of system fault solutions preparing equipment, tools and work sites conducting maintenance and repair of pipes, fittings and small structures reporting blockages cleaning and flush systems clearing work site completing documentation. |
Context of and specific resources for assessment | Access to the workplace and resources including: documentation that should normally be available in a water industry organisation relevant codes, standards and government regulations. Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and assessment support when required. Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed. Validity and sufficiency of evidence requires that: competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice a decision of competence should only be made when the assessor has complete confidence in the person's competence over time and in various contexts all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit. In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the operator and cultural issues that may affect responses to the questions, and will reflect the requirements of the competency and the work being performed. |
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
This describes the essential skills and knowledge and their level, required for this unit. |
Required skills: identify and respond to operational problems produce reports and logs use safety and personal protective equipment use tools and machinery follow plans, charts and instructions perform work-related calculations apply policies apply monitoring procedures and standards communicate effectively with employees and customers work effectively as part of a team use communication systems give and receive instructions identify system faults use literacy skills in regard to verbal and written communication in the workplace identify hazards. |
Required knowledge: system hydraulics basics system layout environmental aspects of maintenance customer and organisational responsibilities for blockages standards and procedures for organisational repair and maintenance lock-out procedures for mechanical and electrical installations closed circuit television (CCTV) and other methods of monitoring relevant utilities and service bodies communication systems safety procedures hazardous materials handling landscape and ground structure of work area risk factors and potential hazards of monitoring processes equipment operation capacity and limitations effects of weather and conditions on system operation and plant control systems pipes and fittings disinfection of systems and chemical usage. |
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts. | |
Work requirements may include: | location and extent of work location of utilities site boundary protection and traffic control hazards, risks and preventative solutions. |
Assets may include: | collection system pipe work, including: polyvinyl chloride (PVC) polyethylene vitrified clay concrete mild steel cement lined ductile iron cement lined cast iron cement lined asbestos cement glass reinforced piping structures, including: meter pits maintenance holes, chambers, traps or pits valve chambers regulators erosion barriers thrust blocks pumping stations. |
Equipment and tools may include: | basic hand and power tools electronic monitoring and metering systems recording systems on- and off-road vehicles communication equipment computerised equipment CCTV pipe and cable detection equipment leak detection equipment motorised equipment portable pumps communication equipment breathing apparatus gas detection equipment rescue equipment appropriate personal protective equipment. |
Flow control may include: | admission of trade waste odours infiltration and exfiltration electronic and manual controlling systems pumping systems, including: centrifugal positive displacement valving systems, including: sluice gate non-return blade metering systems, including: bubbler tube ultrasonic magnetic meter. |
Fittings may include: | sluices valves scours main taps jointing systems for pipe types, e.g. gibault tapping bands tension bands solvent cement joints compression ring joints bolted flanges electrofusion butt welding backflow prevention devices cathodic protection. |
Legislative and organisational requirements may include: | relevant federal and state or territory legislation and regulations codes of practice, associated standards and guidance material documented organisational policies, manuals and induction programs relevant community planning and development agreements, such as land care agreements. |
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
| Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice | Yes | No | Comments/feedback |
|---|---|---|---|
| Investigate customer complaints. | |||
| Locate problems using inspection points and system fault location techniques. | |||
| Identify organisational and customer responsibilities for faults. | |||
| Select remedial action according to organisational procedures. | |||
| Determine work requirements for maintenance and repair of assets from specifications and instructions. | |||
| Select and check equipment and tools required to meet task and site safety requirements. | |||
| Select, fit and use personal protective equipment. | |||
| Controlflows to allow maintenance and repair of assets. | |||
| Repair or replace leakages and damaged assets according to organisational procedures. | |||
| Select fittings and tools and lay or join assets according to manufacturer guidelines and organisational requirements. | |||
| Conduct preventative maintenance according to organisational maintenance programs. | |||
| Locate system chokes and blockages and arrange removal. | |||
| Perform cleaning and flushing according to legislative and organisational requirements. | |||
| Inspect minor structures and determine and apply appropriate repair techniques. | |||
| Check, maintain and store equipment, tools and materials to manufacturer guidelines and organisational procedures. | |||
| Restore work site to meet environmental and organisational requirements. |
Forms
Assessment Cover Sheet
NWP257B - Maintain and repair wastewater collection systems
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
NWP257B - Maintain and repair wastewater collection systems
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent
Assessor name:
Signature:
Date:
Student signature:
Date: